New motherboard

marcd2011

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Aug 17, 2011
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hello,
i need abit of help with this, i do know about computers but im no expert,
ive got an acer aspire x3400,
amd athlon II x3 2.7Ghz
6gb ddr3 ram
sapphire radeon hd 5570 1gb
1tb hdd
220watt psu
windows 7 home premium

im getting a full size case for it and a 500watt psu as this is only a small pc.
will the new psu be able to run two 5570s in crossfire?

and i want to get a new motherboard because i want to unlock the forth core if it works, and overclock it a little bit, but i want it to have 2 PCI-E x16s.
i can spend about £60, + an extra £20 or so if i need to.
can anyone recommend a good/decent motherboard i can buy in the uk?

thanks for any and all help